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Thread: Scientists discover Earth-like, water-rich planet: study

  1. #21
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    Re: Scientists discover Earth-like, water-rich planet: study

    Can we go there and secretly abduct and return individuals living on the fringe of society so that they can appear more whacked out to their peers then they were previously?
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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by Ikari View Post
    From the article



    Looks like density calculations. Not sure how they work it out. I would have thought a form of spectroscopy.
    They know the mass of the planet from it's motion about it's parent star. simple Newtonian physics.

    The distance of the planet to the star is known, the energy radiated by the star is a known value, hence the temperature of the planet is easily calculable.

    It's mass and temperature tells one that it's a rocky terrestrial planet, not a gas giant.

    If they've managed to get a spectroscopic shot of the planet and didn't discover it by simple astrometry, then they know the composition of the atmosphere fairly reliably. If it was discovered astrometrically, th eknowledge of the planetary mass and temperature and assumptions regarding the composition of the nebula that formed that solar system will lead to some conclusions regarding atmosphere and planetary make-up.

    Also, I would be extremely leery of saying that this planet cannot harbor life. Our knowledge of life's origins is based on the study of only one planet, hardly a sample size to satisfy any statistical generalizations.

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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by Gibberish View Post
    Can we go there and secretly abduct and return individuals living on the fringe of society so that they can appear more whacked out to their peers then they were previously?
    We could **** with them and send them back with really random earth objects. I say we send them back with Furbies.
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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by danarhea View Post
    Close, but no cigar, but this discovery does lend credence to the belief that life exists elsewhere. Who knows, maybe sometime in the distant future, we may travel to an earthlike place in another solar system. There is also the possibility that someone from another civilization, far removed from Earth, may travel here........

    ......But, alas, he may take a look around, see a Democratic or Republican Congresscritter, and decide that there really is no intelligent life here after all.

    Article is here.
    Did the scientists say whether they saw any signs of global warming protests going on?
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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by Goshin View Post
    Part of the reason we detect these "oversize" planets is because our detection methods are too unsophisticated yet to easily find earth-size worlds.
    What's really impressive though is that even 10 years ago they weren't able to detect much anything but Jupiter-size gas giants (over 10 times the size of earth). They'll be finding earth-sized planets soon.
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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by American View Post
    Did the scientists say whether they saw any signs of global warming protests going on?
    That's not the topic. Please stick to the topic. Thank you.
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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by danarhea View Post
    Close, but no cigar, but this discovery does lend credence to the belief that life exists elsewhere.
    Really, there's no reason there cannot be life there.
    "LIfe as we know it", maybe not -- but that doesnt mean anything.

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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by Hatuey View Post
    We could **** with them and send them back with really random earth objects. I say we send them back with Furbies.
    I would send them back with a Furbie, a garden gnome, and a copy of The Zombie Survival Guide: Complete Protection from the Living Dead.

    They can then make three competing religions off their interpreted meanings of the products.
    "Gold gets dug out of the ground in Africa, or someplace. Then we melt it down, dig another hole, bury it again and pay people to stand around guarding it. It has no utility. Anyone watching from Mars would be scratching their head."
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    Re: Scientists discover Earth-like, water-rich planet: study

    If they are 42 light years away, that means they are now receiving TV signals from 1967....

    Quote Originally Posted by danarhea View Post
    Since this planet is more than two and a half time the size of the earth, it's mass is therefore more than 6 times that of earth. Therefore, the boiling point of water is going to be much, much higher there, probably more than 500 degrees Fahrenheit. So you can have liquid water that no carbon-based lifeform could ever live in.
    I'm not sure if you're joking but that's not how it works. Boiling point is a physical property that does not change with location.

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    Re: Scientists discover Earth-like, water-rich planet: study

    Quote Originally Posted by Dav View Post
    I'm not sure if you're joking but that's not how it works. Boiling point is a physical property that does not change with location.
    I think what it is, is that the larger, more massive planet has a much thicker and "heavier" atmosphere. Which changes vapor pressures and that indeed does raise a boiling point. Boiling points are subject to location, or rather to air pressure. Water boils at different temperatures at sea level than it does in Denver.
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